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zheka24 [161]
3 years ago
13

Dominic, Ralf and Peter have just eaten a HUGE Christmas meal. Dominic now weighs half as much as Ralf, and Peter weighs three t

imes as much as Dominic. Together they weigh 720 pounds. How much does Dominic weigh?
Mathematics
1 answer:
Strike441 [17]3 years ago
4 0
Dominic weighs 120.

I started laughing as soon as I saw this question...

It honestly made my day:)


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2. Solve the equation - 4(8 + y) = 90.​
kondor19780726 [428]

Answer: y=-61/2

Step-by-step explanation: - 4(8 + y)/-4 = 90/-4

8+y-8=-45/2-8

-8(2)-45/2

-16-45

-61

y=-61/2

3 0
3 years ago
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If you flip a coin 3 times what is the probability of getting at least 2 tails
elixir [45]
If you flipped a coin 3 times:{

Total number of possible outcomes = 2³ = 8

Total number of outcomes with at least 2 tails = 4
{HTT , THT, TTH, TTT}

P(at least 2 tails ) = 4/8 = 1/2

Answer: 1/2




4 0
3 years ago
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The sum of the three angles in a triangle is 180 degrees. One of the angle measures 30 degrees, and the second angle measures 75
Molodets [167]

Answer:

75 degrees

Step-by-step explanation:

30 + 75 = 105

180 - 105 = 75

4 0
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The model represents the equation <br> 4x+ 4 = 12<br> What value of x makes the equation true
myrzilka [38]

Answer:

B

Step-by-step explanation:

All you have to basically do on this one is go backwards.

The beginning equation is 4x+4=12, so to first revesre the adding we are going to use 12, the product, and subtract 4 from it (since that is what was added).

12-4=8

Now you need to reverse the times 4, so to do that just divide instead because that is the invese of multiplication.

8/4=2

Now you have 2, which is the variable, x. To make sure this is right you can just put it into the equation and see if 4x2+4 is 12

Hope this helped!

6 0
2 years ago
Find the quadratic function that has roots of -9 and 3 and a vertex of (-3,-36)
natita [175]
Y=(x+9)(x-3)+c
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y=(x-9)(x+3)-72
y=x^2+3x-9x-27-72
y=x^2-6x-99
6 0
3 years ago
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